Why the Free General B2b directory sector is over

Seeing as Google devalued most b2b directories – its now pointless submitting to them for rankings as their profiles got deleted and they struggle – so any new listings cant stand out. Also the directories get such low traffic, so why would anyone wish to list with them… Directories have evolved now, and went niche/vertical years ago – so you now have no choice but to pay to list with the niche ones. Don't want to? fine, just expect even less exposure.